Submission #540454

#	Time	Username	Problem	Language	Result	Execution time	Memory
540454		BhavayGoyal	Job Scheduling (CEOI12_jobs)	C++14	100 / 100	503 ms	26452 KiB

jobs

#include <bits/stdc++.h>
using namespace std;

#define vii vector<vector<int>>
#define pii pair<int, int>
#define f first
#define s second
int inf = 1e9;

int n, d, m; 

pair<bool, vii> isFiss(int mid, vector<pii> &arr)
{
    int idx = 0;
    vii answer(n);
    for (int i = 1; i <= n; i++)
    {
        for (int j = 0; j < mid; j++)
        {
            if (arr[idx].f > i) break;
            if (i <= arr[idx].f + d) answer[i-1].push_back(arr[idx++].s);
            else return {false, answer};
            if (idx == m) return {true, answer};
        }
    }
    return {false, answer};
}

void sol()
{
    cin >> n >> d >> m;
    vector<pii> arr(m);
    for (int i = 0; i < m; i++)
    {
        cin >> arr[i].f;
        arr[i].s = i+1;
    }
    sort (arr.begin(), arr.end());

    int i = 1, j = m;
    int ans = m;
    vii actualans;
    while (i <= j)
    {
        int mid = (i+j)/2;
        auto f = isFiss(mid, arr);
        if (f.f)
        {
            actualans = f.s;
            ans = mid;
            j = mid-1;
        }
        else i = mid+1;
    }
    cout << ans << endl;
    for (int i = 0; i < n; i++)
    {
        for (auto j : actualans[i]) cout << j << " ";
        cout << 0 << endl;
    }
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    int t;
    t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++)
        sol();
}

• Subtask 1: 100 / 100